Reader John (thanks!) has now posted a recap of the spoilers at the Television Without Pity spoiler thread.
Casting sides have been released for Episode 10, called "Running Mates". These are the roles being casted. You can read the sides at Nowcasting for free by registering at the site. The original script sides have also been posted in the files section of the Aaron Sorkin Yahoo Group, which you can also register with. A summary is being posted at the J/D Yahoo Group.